Fig. 2
Planck dust temperature, T, as a functionof our estimate for the radiation field intensity, 
, colored by the Planck dust optical depth at 353 GHz, τ353, converted to a reddening (Planck Collaboration XI 2014; Planck Collaboration XLVIII 2016). The blue curve is the prediction for dust with fixed optical properties. Black crosses indicate the position in that plot for the 206 stars from Paper I.
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